On Jun 13, 9:42 pm, "Ryan C. Underwood" <runde...@mail.win.org> wrote: > I have an SE/30 that has been cleaned and had caps & battery replaced, and it > boots and works fine -- except, when a floppy drive is plugged in. In > that case, I get a Simasi pattern. The same drive works on another > SE/30. Wondering if I have a bad floppy chip, but has anyone else seen > this? > > -- > Ryan C. Underwood > runderwo(at)mail.win.org
If you have a voltmeter, I would hook it up to your 5V supply and see if it drops significantly below 5V when the floppy drive is plugged in and during the boot process. Similarly for the 12V supply. It could be that there's a short on the floppy drive, or it could just be that your supply is already marginal (maybe only delivering 4.9V or something) and the floppy drags it under the operating range of the logic board. Jeff Walther -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
